The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 2024
Filed:
Apr. 29, 2019
Werner Co., Greenville, PA (US);
Thomas W. Parker, Jamestown, PA (US);
Werner Co., Greenville, PA (US);
Abstract
An extension ladder having a base section and a fly section. The fly section has a right local reinforcement disposed inside a right fly rail of the fly section at locations of highest bending moment of the right fly rail when a force is applied to the right fly rail. The right local reinforcement is shorter than a length of the right fly rail. Loads applied to the right fly rail are transmitted to the right local reinforcement so the right fly rail may be thinner than if there was no right local reinforcement present. A method for producing a ladder rail with a local reinforcement between a top rail flange and a bottom rail flange. A method for using an extension ladder.